Pour spout carton



Oct. E2, 1937.. l K. F. SPALDING j 2,095,720

I POUR SPOUT GARTON Filed May 16. 19564 2 sheets-sheet 1 Oct. 12, 1937. K. F. sPALDlNG vPOUR sPoUT CARTON Filed May 16, 1936 2 Sheets-Sheet 2- Patented Oct. 12, 1937 .PATENT OFFICE N rormsrou'r oAnroN Kenneth F. Slalding, Maywood, lll., assignor, by mesne assignments, to F. Dorsey Montgomery,

Chicago, IIL

Application May 16, 193s, serial No. 80,126

8 Claims.

This invention relates to improvements in containers or cartons of the type folded from a blank arranged to include a closure at an upper corner thereof adapted to form a pouring spout. More particularly, my invention is directed to an improved arrangement of the pouring spout, wherein the latter is hinged along one edge of the carton, and has a right angled portion that is slidably contained in a pocket formed between adjacent inner and outer wall portions of the carton, so as to seal the carton against ingress of dirt or excessive moisture. and against leakage of fthe contents from the carton at this point.

In carrying out my invention, I provide a pre- '15 formed blank designedso that when folded and 0 tially cut lines of severance, whereupon the pour ing spout may be swung into open position from' time to time, and used todischarge the contentsof the cartonas desired.

The invention may best be understood by reference to the accompanying drawings, in which Fig. 14 is a perspective view showing one form of carton made in accordance with my invention inwhich the pouring spout occupies a relatively sm'all area at a top corner of thelcarton.

Fig. 2 is a similar view showing the pouring spout in open position. i

Fig. 3 shows in reduced scale a blank from which the carton including the pouring spout shown in Figs. 1 and 2 may be formed.

Fig. 4 is yan enlarged detail fragmentary view illustrating the method of folding the blank to produce the 'pouring spout construction.Y

portions` of Fig. 5 is a view somewhat similar to Fig-'4, but showing the carton in assembled. condition,

spout construction in which the spout .occupies a portion-of ythe top area. of.A

substantially larger 50 the carton. I Y

Fig. 8 is a view similar to Fig. '7, but showin i the pouring spout in opened position. i

Fig.-9 shows in reduced scale-the blank from which the carton including the pouring spout 55, shown in Figa-7 and 8' may be formed.

(ol. 229-17) f Fig.\10 is an enlarged detail fragmentary view showing the method of folding the blank of Fig. 9 to produce the pouring spout construction.

Fig. 11 is a view somewhat similar to Fig. 10, but showing the carton in assembled condition, 5 excepting for one side wall thereof. y

Fig. 12 is a. view somewhat similar to Fig. 11, but showing the carton in nally assembled condition, but with the pouring spout open and a. side wall broken away to show the pocket in which @the free wall of the pouring spout is slidably contained. M 'f Y Referring to cicia'zsl construction of the embodiment of my invention illustrated in., Figs. A1 to 6, both inclusive, the finished carton indicated at I0 in Figs. 1 and 2 is made from the blank shown in Fig. 3, which is substantially rectangular inV general outline. Said blank is creased or scored along suitable upright lines Il, I2 and I3, and horizontal lines I5 and I6 to. form side walls Il,Y I8, I9 and 20. 'Ihe bottom .wall is formed as usual by suitably overlapping the iiaps` Il, 18a, I5 and` 20 severed along abutting edges as shown. Y

The pouring spout constructionis formed from the aps 2l and 28 above the horizontal crease or scoring I5. Flap 2i is adapted to provide the exterior of the top wall. It extends from a. cut 22 separating it :from the end ap Ilfb, to a diagonal cut 23 extending from the outer end `of the crease I2 downwardly to the adjacent corner formed by the junction of creases I3 and` I5. The crease I5 is also cut as indicated at 24 between the upright creases I2 and I3 to form-a triangular projection 2|, of the apV 2i beyon the crease I2. i

'I'he pouring spout itself is outlinedby an arcu- A ate line of severance indicated at 25 inthe main bodyk 0f tab 2| at the corner formed by the creases I5` and I2 so as to define a fan-shaped 40 wing25, and continuing this arcuate line by a cut- 26'in'the adjacentl co ner of the triangular y,

- projection 2| extending' d wnwardly to the cut :isA

in, such lines are preferably formed by a series of elongated cuts or slots of the type usually ernployed to permit easy severance of the stock along such lines.

'Ihe flap 28 is connected to the side Wall 20 by a portion of crease I5, and includes a triangular extension 28a extending beyond the crease |3 to the Ydiagonal cut 23 which separates the ap 28 fromfthe ap 2|. A fan-shaped portion is removed from flap 28 by cutting along the outer end of the crease I3 and an outwardly extending larcuate line to form a notch indicated at 29.

'I'his notch is adapted to form the inner opening for the spout, and is preferably formed with a slightly shorter radius than thatof the spout wings 25 a and 26a, as will hereinafter more fully appear.

The method of folding or forming the parts of `the blank just described will be understood by reference to Figs. 4, 5, and 6. The triangular extension 2 Ia of the flap 2| is folded along crease I2 so that it lies against the inner surface of the adjacent wall |9, and the triangular extension 2|!a of flap 28 is also folded inwardly on crease I5, but within the extension 2|a, as indicated in Fig. 4. When the carton is in assembled position, the extension 28aL registers withl extension 2|a, as shown in Figs. 5 and 6, the triangular extension 2-IEL being secured to the wall I9 as by a strip of adhesive 2|b along the diagonal cut edge 23, and the extension '28a being secured to the innei` face of the extension 2| by a similar strip of adhesive 28h.

The remaining portions of the carton are suitably secured to each other in the usual manner, in the form shown the side walls |1 and 20 being secured by an upright flap h.

It will now be noted that when the carton is nally sealed, the pouring spout likewise remains sealed as long as the line of severance indicated at is intact. When it is desired to open the spout the severance line 25 is broken so as to permit the wing 258L of the spout to be hinged upwardly along the crease I5 toexpose a slightly smaller fan-shaped opening formed by the notch 29 in flap 28, as indicated in Figs. 2 and 5. The wing 26a of the spout swings upwardly between the wall formed by the outer Wall |9 and the triangular projection 28a which, together with the extension 2Ia, forms an open pocket for the spout wing 26a, as shown in Figs.

5 and 6. The movement of the spout is limited .by the stop 21 on the lower end of the wing 26 which comes into engagement with the adjacent overhanging edge of the flap 2|.

It will be especially observed that by provision of the inner nap 28a and the intermediate flap 2|L glued or otherwise secured to each other and to the adjacent wal1|9, the'spout is' effectively sealed around the spout wing 25a where it enters the carton along the side wall I9, thereby protecting the contents of the carton against ingress of moisture and dirt, as well as spillage of said contents.

Referring now to the form of pour spout shown in Figs. 7 to 12, the carton indicated generally at 30 is made from a blank 3| shown in Fig.'9. Said blank is creased along vertical lines 3|, 32 and 33, and vertical lines and 36 to form side walls 31, 38, 39 and 40.

In the blank shown in Fig. 9the bottom .flap 33a is provided with integral triangular extensions 39h, 39b extending the width of the adjacent side walls 38 and 40, and each having a diagonal crease 40a, 40a to permit the flap 39a to be folded inwardly across the bottom of the carton. The opposite bottom flap 31e is hinged to the bottom of the upright wall 31 and has trlangular end extensions 38B, 38a adapted to 'be suitably folded with the bottom ap 39u to close the bottom of the carton.

The carton top with the spout arrangement is formed from the two aps 4I and 42. An intervening flap :I8b severed from flaps 4| and 42 by cuts 43 and 44 -is arranged to underlap the top from the side opposite the spout.

'I'he flap 4| is connected above the upright side wall 31 and includes a rectangular portion extending laterally beyond the vertical crease line 46. A line of severance is formed in the iiap 4| alonga diagonal line indicated at 41, and from thence along the outer end of said crease line 46, so as to permit a corner portion 41a of the .top ilapf4| to be removed', as wi-llfhereinafter more fully appear.

The ap- 42 includes the pour spout, which consists of an arcuate portion 42 dened by the crease line 33 and a cut 48 separating said arcuate wing 42a cut from the side wall 46 along the crease line 35, and a contiguous wing 42b of substantially the same horizontal width as the arcuate portion 42s. The wing portion 42b is of the same height as, but separated from, a third rectangular portion 42 of flap 42 by an upright perforated line 49extending from the horizontal score line 35 to the outer edge of the ap 42. A projecting stop 42dis pivoted at the extreme lower corner of the wing 428.

An elongated tab 5I) extends along the side wall 31 below the extension 45, and is provided with a notch 5I having an overhanging shoulder 52 adjacent its upper end. The purpose of this tab and shoulder will hereinafter more fully appear.

The method of folding or forming the parts of the blank just described will be understood by reference' tov Figs. 10, 11 and 12. When the carton is in partly folded position as shown in Fig.

l0, the flap 4I is folded inwardly on the crease 35, while its extension 45 is folded downwardly on crease 46 and the adjacent perforated extension of saidcrease to form an inner wall of the carton. The 'flap 42 is folded on its crease 35 so that the parts 42b and 42 thereof overlie the flap 4I to form the top of the carton, and the part 42 is folded downwardly-so as to overlie the extension 45. -'Ihe tab 50 is folded in` wardly over the adjacent margin of flap 45, and the free side wall 40 is folded over the tab 56 as Well as the spout wing 42a and the extension 45 as indicated in Figs. 11 and 12.

'I'he upper end of the carton is sealed by securing the tab 50 to the extension 45 and also s ecurfigthe outer surface of tab50' and extensions 45 to the inner surfaceof the side wall 4I), but limiting the adhering surfaces to an area spaced from the margin of wing 42a as indicated in Fig. 11. The portion 42 of the top flap may also be secured by adhesive to Athe ap 4|, but the wings 42a and 42b forming a part of the upper flap 40 are. normally unsealed, excepting that in the form shown the portionv 41a defined by the line of perforation 41 and crease 46 may be glued to the under surface of wing 421.

With the construction and arrangement above described, the pouring spout is sealed as long as the severance lines 41 and 49 remain intact. In opening the spout, the wing 42h may be raised by inserting the finger or s`me suitable form of tool beneath the curved corner 42x of said wing,

2,095,720 ce line 49. As thefreewlng adapted to be folded at right angles to said so as to break the severa\\ edge of the wing 42b is ra' ed, the severance line 41 in the flap 4| may then bbroken to permit the entire spout including wings 4land 42h to be hinged upwardly. The severed prtion 41 terior ofthe carton as shown in Figs. 11 and 12.

'I'he movement of the spout is limited by the stop l2d which comes into engagement with the adjacent overhanging shoulder 52 of tab 50 whe the spout is in fully opened position.

In some instances it may be desired to increase the width of tab 50 as indicated at 50a in Fig. 9 so as to extend the full width of the carton and fully close the lower end of the pocket formed between the extension 45 and the. outer wall 40. In most instances, however, the glue or adhesive will be sufficient to fully seal the lower end of the spo'ut wing pocket between the extension 45 and side wall I9.

The construction above described is such that the carton is effectively sealed around the spout wing 42a, and especially where it enters thetcarton along the side wall 40, as is the case with the, form previously described, and shown in Figs.A 1 to 6.

The cartons hereinabove described are particularly adapted for treatment by suitable waterproong material either before or after final assembly, to aord additional protection about the joints, and particularly around the spout, thereby insuring a waterproof and moistureproof package before thespout is opened, andthereafter protecting to a large degree .the contents of the carton. The spout closure may `be readily opened for the purpose of pouring -the contents directly therefrom. vIn the form shown in Figs. 7 to 12, both inclusive, the spout opening is of sufficient size to permit the insertion of a spoon, and as an additional feature, the severance linev 41 defining the inner side of the opening, is straight so as to permit the contents of the spoon to be leveled off as' the later is removed.

It will be observed that in the two forms of cartons above described, different means are p'rovided for forming the spout opening in the under ap beneath the swinging spout itself. Thus in the blank shown in Fig. 3, this opening is provided by notch 29 initially cut in flap 28, while in the blank shown in Fig. 9, a similar opening is formed by piece 41a surrounded by severance line 41' adapted `to be removed after the spout is opened. It will be understood, of course, that these two arrangements may be considered as alternative constructionsV for either form, as desired.

The spout constructions herein disclosed are particularly simple and inexpensive in manufacture. IThe operation thereof is easily understood and its practical advantages will be manifest to the thrifty housewife. l

Although I have illustrated and described certain embodiments of my invention, it will be understood that I do not wish t0 be'limited'to the exact construction shown and described, but that various changes and modifications may be made without departing from the spirit and scope of my invention as dened in the appended claims.

- 1. In a carton formed' of a blank including side and end walls, a pour spout closure consisting of a.y corner portion of o ne of said end walls, and as `wing of corner portion and forming with the latter a swinging spout hinged upon the crease of said endilap, a second end wall having a portion thereof spaced from an adjacent side wall to form a pocket for said pour spout wing, and means on' said end walls for sealing said pocket from the interior of said carton.

2. In a carton formed of a blank including side walls and end aps, a pour spout closure at a corner of said carton consisting of a severable portion of one of said end flaps hinged upon the crease thereof, and a wing integral with said severable portion, anend flap havinga portion spaced froman adjacent side wall to form a pock-` et for said wing, and means for sealing said pocket lfrom the interior of said carton.

3. In a carton formed of a blank including side walls and end naps, a pour spout closure consisting of a corner portion of one of said end flaps, and a wing adapted to be folded at right angles to said corner portionand forming with the latter a swinging spout hinged upon the crease of said end flap, an end flap having a portion thereof adapted to underlap an adjacent side wall, and

means for spacing said last named end flap from said side wall to form a pocket to receive said pour spout wing sealed from the interior of said carton.

4. In a carton formed of a. blank including` si walls and end flaps, a pour spout closure consis ing of a corner portion of one of said end aps,

and a wing adapted to be folded at right angles to said corner portion and forming with the latter and said adjacent side wall to form an open pocket for said pour spout Wing,bl1t sealed from the interior of said carton. Y I

5. In a carton formed of a blank including side walls and end flaps, a pour spout closure consisting of two end flaps hingedto opposite side walls and separated from each other by a diagonal cut extending from one corner of one side wall to the outer end of the transverse crease line of the opposite sidewall to form complementaryA triangular -extensions of the respective end naps, a pour spout formed by one of said end aps consisting of a wing defined by a severableline at the inner corner thereof adjacent its respective triangular extension, and an integral wing cut in the adjacent corner of said last named triangular extension, means providingl an opening in the outer corner of said second named end flap adjacentV its triangular extension, said end flaps being arranged to fold inwardly toward each other to form the end of the carton with the triangular extension of said rst named end flap within and registering with the complementary triangular extension of said second named flap, said triangular extensions being secured to each otherjznd lto the ing of a corner portion of one of said end `flaps hinged to a side wall, and an integral wing formed of a lateral extension of said corner portion, and a 4second end ap hinged to a. side wall opposite adapted `to underlap the side wall adjacent the aid first named end flap to form `a pocket.

Vsaid first named flap having an extension thereof named end ap' from said side wall to form a pocket to receive said pour spout wing sealed from the interior of said carton, and means in said second end flap forming an opening at the end of said carton when said pour spout is in open position..

8. In a carton formed of a blank including side wall and end flaps, a pour spout closure consisting of a corner portion of one of said end aps, and a wing adapted to be folded at right angles to said corner portion and forming with the latter a swinging spout hinged upon the crease of said end flap, an end ap having a. portion thereof adapted to underlap said first named end ap and an adjacent side Wall, means for spacing said last named end flap from said side wall to form a pocket to receive said pour spout Wing sealed from the interior of said carton, and means in said second end iiap forming an opening at the end of said carton but overlapped and fully closed by the pour spout when the latter is in closed position.

KENNETH F. SPALDING. 

